Levels

Standard Controls

1990-2021

AR = 0

AR = 1

w/ ETS

2000-2021

AR = 0

AR = 1

w/ ETS

w/ Temp Controls

no ETS

ETS

Temp & Pop Only

no ETS

ETS

First-diffs

AR = 0

AR = 1

Growth rates

AR = 0

AR = 1